CN103629432B - A kind of valve cage structure for heavy caliber low noise control valve - Google Patents
A kind of valve cage structure for heavy caliber low noise control valve Download PDFInfo
- Publication number
- CN103629432B CN103629432B CN201310697792.8A CN201310697792A CN103629432B CN 103629432 B CN103629432 B CN 103629432B CN 201310697792 A CN201310697792 A CN 201310697792A CN 103629432 B CN103629432 B CN 103629432B
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- throttling
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- openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The object of the present invention is to provide a kind of valve cage structure for heavy caliber low noise control valve, comprise category-A throttling disc, category-B throttling disc, C class throttling disc, taking A disc as benchmark, multi-disc category-B throttling disc and C class throttling disc are arranged from the bottom up, utilize the structure in flow regulator pieces to adopt pin that each flow regulator pieces is fixed on and presses down egative film A above, finally form complete valve cage structure. Between valve cage inner surface and outer surface, each disc comprises at least one to multiple throttling walls that are arranged in concentric circles, has at least one to multiple openings on each throttling wall. On the bottom surface between category-B disc, C class disc throttling wall, also have some openings, after the combination of polydisc sheet, form along the axial flow region of valve cage, this flow region can effectively increase the fluid flow by valve cage. Pass through openings in the present invention is multiply tributary by fluid dispersion, and each burst of tributary collides with each other again to have reduced as much as possible energy rank after throttling wall.
Description
Technical field
What the present invention relates to is a kind of valve.
Background technology
Control valve is widely used in Process Control System, for regulating industrial automation process control fieldThe technological parameter such as rate-of flow, pressure. According to the control signal in automated system, automatic regulating valve doorAperture, thereby realize working medium valve inlet and outlet between flow. In order to provide operating mode required spyDetermine fluid flow characteristics, low noise valve often adopts and in the runner between valve outlet port and import, valve cage is set and savesStream. The valve cage hydrodynamic noise that both can decay also can reduce or eliminate cavitation. In addition, valve cage and valve closeClose part and coaxially install, thus the balance and stability that improves closure element.
Due to Complex Phenomena in Vertical Bell Jars such as ubiquity turbulent flow, separated flows in valve flowing channel, make the work of valveMaking noise becomes an important evaluation criterion of valve mass gradually. The use of valve cage can reduce stream effectivelyThe flow velocity of road inner fluid, alleviates the turbulence pulsation noise of fluid and the noise that cavitates. In valve, the control of flow is by valvePlug determines with the relative position of valve cage, for example, by the essence of control valve control member (: valve disc, valve plug)Really the working medium flow that flows through control valve is accurately controlled in motion. Because causing cage, the throttling action of valve cage regulatesThe flow loss of valve is larger, and when valve cage design, how balance reduces flow noise and reduces flow loss two aspectsFunction is the problem that the design of novel low-noise control valve faces.
Summary of the invention
The object of the present invention is to provide the speed that has reduced HTHP working medium, eliminated after throttling and pressedA kind of valve cage structure for heavy caliber low noise control valve of the cavitation that power rapid drawdown causes.
The object of the present invention is achieved like this:
A kind of valve cage structure for heavy caliber low noise control valve of the present invention, is characterized in that: comprise category-A jointFlow table sheet, category-B throttling disc, C class throttling disc, category-A throttling disc includes cylindrical form interior surface and circleCylindrical outer surface, arranges two-layer or two-layer above throttling between the inner surface of category-A throttling disc and outer surfaceWall, does not have pass through openings on the adjacent throttling wall of the outer surface of category-A throttling disc, at all the other throttling wallsOn be along the circumferential direction evenly arranged and be no less than plural pass through openings; Category-B throttling disc comprises cylindricalInner surface and cylindrical outer surface, arrange two-layer or two-layer between the inner surface of category-B throttling disc and outer surfaceAbove throttling wall, does not have pass through openings on the adjacent throttling wall of the outer surface of category-B throttling disc,On all the other throttling walls, be along the circumferential direction evenly arranged and be no less than plural pass through openings, between throttling wallDisc bottom surface on be along the circumferential direction evenly arranged and be no less than plural pass through openings; C class throttling discComprise cylindrical form interior surface and cylindrical outer surface, between the inner surface of C class throttling disc and outer surface, arrangeTwo-layer or two-layer above throttling wall is along the circumferential direction evenly arranged not on the throttling wall of C class throttling discBe less than plural pass through openings, on the disc bottom surface between the throttling wall of C class throttling disc along circumferenceDirection is evenly arranged and is no less than plural pass through openings; Described category-A throttling disc has a slice, category-BThrottling disc and C class throttling disc have respectively a slice at least, according to category-A throttling disc, category-B throttling disc,The order of C class throttling disc is arranged from bottom to top, and by the pin structure that links into an integrated entity.
The present invention can also comprise:
1, the inner surface of category-A throttling disc, category-B throttling disc and C class throttling disc be projected as circle alsoOverlap, the circle that is projected as of the outer surface of category-A throttling disc, category-B throttling disc and C class throttling disc is laid equal stress onClose, the quantity of the throttling wall of category-A throttling disc, category-B throttling disc and C class throttling disc equates, category-A jointIn flow table sheet, category-B throttling disc or C class throttling disc, the pass through openings of adjacent throttling wall staggers mutually.
2, category-A throttling disc has 1, and category-B throttling disc has 4, and C class throttling disc has 5, category-AThe throttling wall of throttling disc, category-B throttling disc and C class throttling disc all has 4.
3, described pass through openings is rectangle, circle, Long Circle or rhombus.
Advantage of the present invention is: the perforation in the multistage multi-channel throttling disc in the present invention on cylindrical wall is openedMouthful be multiply tributary by fluid dispersion, and each burst of tributary collide with each other again with as much as possible after throttling wallFall low energy levels, each fluid passage is by staggered the forming of pass through openings of specific quantity, each fluidCross and all will reduce flow working medium flow velocity with shunting, realize with this object that reduces flow noise.
Brief description of the drawings
Fig. 1 is stereogram of the present invention;
Fig. 2 a is each throttling disc pin connection structure schematic diagram a of the present invention, and Fig. 2 b is of the present invention eachThrottling disc pin connection structure schematic diagram b;
Fig. 3 a is C class throttling disc top view, and Fig. 3 b is C class throttling disc perspective view, figure3c is pass through openings axis schematic diagram;
Fig. 4 a is category-B throttling disc top view, and Fig. 4 b is category-B throttling disc perspective view;
Fig. 5 a is category-A throttling disc top view, and Fig. 5 b is category-A throttling disc perspective view;
Fig. 6 a is valve cage longitudinal section inner flow passage and throttling disc inner flow passage schematic diagram a, and Fig. 6 b is vertical section of valve cageFace inner flow passage and throttling disc inner flow passage schematic diagram b.
Detailed description of the invention
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～6, the present invention includes: category-A lower sheeting, category-B throttling disc, C class throttling disc andBe used for connecting the pin that each disc is used. 1 above category-B, C class throttling disc are arranged from the bottom to top in turn,Application pin is connected on a slice category-A lower sheeting, forms valve cage device.
Category-A lower sheeting has cylindrical form interior surface and cylindrical outer surface, the throttling wall depending at outer surfaceOn do not there is pass through openings. Between surfaces externally and internally, be the throttling wall that arranged in concentric circles is no less than one deck, in throttlingOn wall, be along the circumferential direction evenly arranged and be no less than plural pass through openings, described pass through openings be rectangle,The regular geometric shapes such as circle, Long Circle or rhombus.
Category-B throttling disc has cylindrical form interior surface and cylindrical outer surface, the throttling of depending at outer surfaceOn wall, do not there is pass through openings. Between surfaces externally and internally, be the throttling wall that arranged in concentric circles is no less than one deck, at jointStream is along the circumferential direction evenly arranged on wall and is no less than plural pass through openings, described pass through openings be rectangle,The regular geometric shapes such as circle, Long Circle or rhombus. On the disc bottom surface between throttling wall along the circumferential directionBe evenly arranged and be no less than plural pass through openings, described pass through openings becomes Long Circle or circular isotactic substantiallyGeometry.
C class throttling disc has cylindrical form interior surface and cylindrical outer surface. Between surfaces externally and internally, be concentric circlesLayout is no less than the throttling wall of one deck, on throttling wall, be along the circumferential direction evenly arranged be no less than pluralPass through openings, described pass through openings is the regular geometric shapes such as rectangle, circle, Long Circle or rhombus. At jointOn disc bottom surface between stream wall, be along the circumferential direction evenly arranged and be no less than plural pass through openings, described inPass through openings becomes the regular geometric shapes such as Long Circle or circle substantially.
The axis of the pass through openings on the different throttling walls of all kinds of throttling discs is arranged on respect to described valve cage axisIn the reference planes of 18 orthogonal settings, and point to valve cage axis or be tangential on centered by valve cage axisOn imaginary circles cylinder 17, described imaginary circles cylinder diameter should be less than the diameter of valve cage cylindrical form interior surface. AdjacentPass through openings axis on throttling wall is along the circumferential direction fixed angle.
This valve cage is combined by multi-disc throttling disc, and the closure element of valve is arranged on outside valve cage or sends out in cage.Throttling disc can be divided three classes according to the ability difference of throttling: category-A press down egative film, category-B throttling disc and CClass throttling disc, category-B and C class throttling disc are arranged from the bottom up, utilize pin to connect firmly in turn and are pressing down the endOn sheet A.
All kinds of discs comprise the multi-level throttle wall that is arranged in concentric circles, and disc is not along described throttling wall circumferential arrangementBe less than the flow region of plural pass through openings, opening axis is positioned at the ginseng of the orthogonal setting of relative valve cage axisExamine in plane, and point to valve cage axis. Opening axis in same disc on different throttling walls is fixed angle.Wherein category-B and C class disc in disc on the bottom surface between adjacent two-stage throttling wall arrange be no less than two withOn the flow region of pass through openings, the axis of opening is parallel with valve cage axis, this opening can effectively increase and pass throughThe working medium flow of valve cage.
Fig. 1 is valve cage orifice union perspective view in known control valve, and this valve cage structure comprises 1Lower sheeting A, 4 category-B throttling discs and 5 C class throttling disc compositions. Category-A throttling disc is as valve cageThe reference for installation of assembly does not have opening on the bottom surface of disc. Category-B and C class throttling disc are suitable from bottom to topInferior arrangement is applied pin and is connected on lower sheeting A, as shown in Figure 2 on structure 11 positions. Valve cage assemblyHave cylindrical outer wall 13 and inwall 12, between inwall and outer wall, valve cage defines one or more fluidsFlow region 15,14. These flow regions can flow fluid working substance between outer wall 13 and inwall 12,Working fluid flow by valve is the determining positions outside valve cage or in valve cage by cypriot valve components.
Referring to Fig. 3 to Fig. 5, every class throttling disc includes 4 grades of throttling walls that are arranged in concentric circles, as Fig. 3Shown c1, c2, c3, c4. On throttling walls at different levels, arrange and be no less than plural pass through openings 14.Each pass through openings is substantially rectangle, but also can have other shapes, as circle, Long Circle, water chestnutShape etc., the central axis of pass through openings should be positioned at and the valve cage axis plane that is orthogonal, and points to valve cage axis,Pass through openings central axis on adjacent throttling wall becomes fixed angle, and as a in Fig. 3, b, c, angle canWith identical also can be different. The shape of pass through openings, quantity, size and adjacent throttling on throttling walls at different levelsBetween wall upper shed axis angle can select different patterns according to different operating modes.
In order to improve the through-current capability of valve cage, other throttling discs except pressing down disc A are in adjacent two-stageOn bottom surface between throttling wall, arrange and be no less than plural pass through openings 15, each throttling in same positionThe shape of the pass through openings 15 on disc, quantity, large I are selected different patterns according to different operating modes.
After the combination of multi-disc throttling disc, bottom surface opening 15 can form the institute as Fig. 6 with each throttling wall upper shed 14The fluid flowing passage showing. At valve cage in the radial direction, this flow channel forces fluid by valve cage outer surface13 openings that pass through on c2, c3 level throttling wall by the opening 14 on C class throttling disc c4 level throttling wallWhile flowing to the opening on valve cage inner surface c1 level throttling wall, flow direction changes, in flow processFluid collides with each other. On the axial direction of valve cage, when fluid flows through C class throttling disc c4 levelThe inner surface that opening 14 on throttling wall arrives category-B and category-A throttling disc exports at 14 o'clock, and fluid is also necessaryChange flow direction. The change of this flow direction is because fluid is by from the bottom surface of C class throttling disc to category-BThe opening 15 running through on throttling disc bottom surface guides and produces. In general, the variation of fluid flow directionTo cause the loss of rate of flow of fluid, fluid pressure and volume of fluid, also can effectively reduce simultaneously due toFluid flow turbulization noise, eddy current crack.
Pass through openings in multistage multi-channel throttling disc in the present invention on cylindrical wall is multiply by fluid dispersionTributary, and each burst of tributary collide with each other to fall as much as possible low energy levels after throttling wall, eachFluid passage is all by staggered the forming of pass through openings of specific quantity, and crossing of each fluid all will reduce with shuntingFlow working medium flow velocity, realizes with this object that reduces flow noise.
Claims (5)
1. for a valve cage structure for heavy caliber low noise control valve, it is characterized in that: comprise category-A throttling plateSheet, category-B throttling disc, C class throttling disc, category-A throttling disc includes cylindrical form interior surface and cylindricalOuter surface, arranges two-layer or two-layer above throttling wall, A between the inner surface of category-A throttling disc and outer surfaceOn the adjacent throttling wall of the outer surface of class throttling disc, do not there is pass through openings, on all the other throttling walls along circleZhou Fangxiang is evenly arranged plural pass through openings; Category-B throttling disc comprises cylindrical form interior surface and cylinderShape outer surface, arranges two-layer or two-layer above throttling wall between the inner surface of category-B throttling disc and outer surface,On the adjacent throttling wall of the outer surface of category-B throttling disc, do not there is pass through openings, edge on all the other throttling wallsCircumferencial direction is evenly arranged plural pass through openings, on the disc bottom surface between throttling wall along circumference sideTo being evenly arranged plural pass through openings; C class throttling disc comprise cylindrical form interior surface and cylindrical outsideSurface, arranges two-layer or two-layer above throttling wall, at C between the inner surface of C class throttling disc and outer surfaceOn the throttling wall of class throttling disc, be along the circumferential direction evenly arranged plural pass through openings, in the throttling of C classOn disc bottom surface between the throttling wall of disc, be along the circumferential direction evenly arranged plural pass through openings; InstituteThe category-A throttling disc of stating has a slice, and category-B throttling disc and C class throttling disc have respectively a slice at least, pressOrder according to category-A throttling disc, category-B throttling disc, C class throttling disc is arranged from bottom to top, and passes through pinFollow closely the structure that links into an integrated entity.
2. a kind of valve cage structure for heavy caliber low noise control valve according to claim 1, its spyLevy and be: the circle that is projected as of the inner surface of category-A throttling disc, category-B throttling disc and C class throttling disc is laid equal stress onClose, the circle that is projected as of the outer surface of category-A throttling disc, category-B throttling disc and C class throttling disc also overlaps,The quantity of the throttling wall of category-A throttling disc, category-B throttling disc and C class throttling disc equates, category-A throttling plateIn sheet, category-B throttling disc or C class throttling disc, the pass through openings of adjacent throttling wall staggers mutually.
3. a kind of valve cage structure for heavy caliber low noise control valve according to claim 1 and 2,It is characterized in that: category-A throttling disc has 1, category-B throttling disc has 4, and C class throttling disc has 5,The throttling wall of category-A throttling disc, category-B throttling disc and C class throttling disc all has 4.
4. a kind of valve cage structure for heavy caliber low noise control valve according to claim 1 and 2,It is characterized in that: described pass through openings is rectangle, circle, Long Circle or rhombus.
5. a kind of valve cage structure for heavy caliber low noise control valve according to claim 3, its spyLevy and be: described pass through openings is rectangle, circle, Long Circle or rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310697792.8A CN103629432B (en) | 2013-12-18 | 2013-12-18 | A kind of valve cage structure for heavy caliber low noise control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310697792.8A CN103629432B (en) | 2013-12-18 | 2013-12-18 | A kind of valve cage structure for heavy caliber low noise control valve |
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| Publication Number | Publication Date |
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| CN103629432A CN103629432A (en) | 2014-03-12 |
| CN103629432B true CN103629432B (en) | 2016-05-25 |
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| CN201310697792.8A Expired - Fee Related CN103629432B (en) | 2013-12-18 | 2013-12-18 | A kind of valve cage structure for heavy caliber low noise control valve |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626957B (en) * | 2016-03-25 | 2019-01-25 | 吴忠仪表有限责任公司 | Anti-cavitation is depressured lamination valve cage |
| US10359128B2 (en) * | 2016-10-21 | 2019-07-23 | Emerson Process Management Regulator Technologies, Inc. | Lattice control cage for a regulator |
| CN107239070A (en) * | 2017-06-29 | 2017-10-10 | 中国船舶重工集团公司第七0三研究所 | The test device and method of testing of a kind of industrial process control system |
| CN108730612A (en) * | 2018-06-04 | 2018-11-02 | 苏州赛易特环保科技有限公司 | A kind of six chip valve discs of environmental protection equipment |
| US11339897B2 (en) * | 2018-08-30 | 2022-05-24 | Fisher Controls International Llc | Valve trim apparatus for use with control valves |
| CN112664668B (en) * | 2019-10-16 | 2023-08-08 | 艾默生过程管理调节技术公司 | Valve cage and valve |
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| US5819803A (en) * | 1996-02-16 | 1998-10-13 | Lebo; Kim W. | Fluid pressure reduction device |
| US6039076A (en) * | 1998-06-30 | 2000-03-21 | Copes-Vulcan, Inc. | High energy loss fluid control device |
| CN1779309A (en) * | 2004-11-19 | 2006-05-31 | 财团法人金属工业研究发展中心 | Pressure-relief device and pressure-relief disk pieces |
| CN101910698A (en) * | 2008-01-11 | 2010-12-08 | 费希尔控制国际公司 | Seal assembly for use with valves having a two-piece cage |
| CN203880214U (en) * | 2013-12-18 | 2014-10-15 | 哈尔滨工程大学 | Valve cage structure used for large-diameter low-noise regulating valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6926032B2 (en) * | 2002-09-13 | 2005-08-09 | Saudi Arabian Oil Company | Pressure-reducing control valve for severe service conditions |
-
2013
- 2013-12-18 CN CN201310697792.8A patent/CN103629432B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819803A (en) * | 1996-02-16 | 1998-10-13 | Lebo; Kim W. | Fluid pressure reduction device |
| US6039076A (en) * | 1998-06-30 | 2000-03-21 | Copes-Vulcan, Inc. | High energy loss fluid control device |
| CN1779309A (en) * | 2004-11-19 | 2006-05-31 | 财团法人金属工业研究发展中心 | Pressure-relief device and pressure-relief disk pieces |
| CN101910698A (en) * | 2008-01-11 | 2010-12-08 | 费希尔控制国际公司 | Seal assembly for use with valves having a two-piece cage |
| CN203880214U (en) * | 2013-12-18 | 2014-10-15 | 哈尔滨工程大学 | Valve cage structure used for large-diameter low-noise regulating valve |
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| CN103629432A (en) | 2014-03-12 |
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Granted publication date: 20160525 Termination date: 20171218 |